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Exercise: Determine Direction of Power Flow in a Circuit Two ideal 50Hz three-phase voltage sources designed...
Q1) Two ideal voltage sources designated as machines 1 and 2 are connected as shown in...
Q1) Two ideal voltage sources designated as machines 1 and 2 are connected as shown in Figure 1. If E! = 100.200 V, E-100し300 V and Z = 0 +JS a) Determine whether each machine is generating or consuming real power and the amount b) Determine whether each machine is receiving or supplying reactive power and the amount c) Determine the P and Q absorbed by the impedance 2 #2 Figure 1: Ideal voltage sources connected through impedance Z Q2)...
Fig Qshows the one-line diagram of a three-phase power system. As shown in Fig. Q3. the...
Fig Qshows the one-line diagram of a three-phase power system.
As shown in Fig. Q3. the two zones are connected by a 400 MVA,
240-kV/24-kV, Ý-A three phase transformer. The Y-A three phase
transfonmer has an equivalent series impedance of ZTH - 1.2 + j1.6n
per phase referred to the high voltage side (primary side). The
three-phase power system can be studied with per unit quantities
using base values of S-500 MVA and 240 kV in zone 1.
By using...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23,...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23, the two zones are connected by a 400 MVA, 240-kV/24-kV, Y-A three phase transformer. The Y-three phase transformer has an equivalent series impedance of 2T - 1.2 + |1.6 per phase referred to the high-voltage side (primary side). The three-phase power system can be studied with per unit quantities using base values of So=500 MVA and 240 kV in zone 1. 2 -1.61253.15" Line...
Problem 1 A balanced three-phase source supplies two loads, as shown in Fig. 1. The voltage...
Problem 1 A balanced three-phase source supplies two loads, as shown in Fig. 1. The voltage rating of the 3-phase source is 6600230° V. Load 1 impedance is 2 =45.9+j572 per phase, Load 2 impedance is Zz=12+j252 per phase. The loads are connected to the source by a 3-phase line with the impedance of ZLine=2.7+j52 per phase. Zine Load 1 a Load 2 a la Z Z Z2 VL Zino Z2 b с 22 с Zine b Fig. 1 Balanced...
Learning Goal: To find voltages and power in a balanced three-phase circuit. Three identical AC voltage...
Learning Goal: To find voltages and power in a balanced three-phase circuit. Three identical AC voltage sources, each with amplitude 170 V, are connected in a Y configuration to three identical resistances, each 50 , also in a Y configuration. There is also a fourth, neutral line in the circuit (see diagram). The voltage sources are each 120° out of phase from the other two sources R RE R - Part A - Load current What is the RMS current...
A 400-MVA, 200-kV/20-kV, three phase Y-Y transformer has an equivalent series impedance of ZTL = 0.012...
A 400-MVA, 200-kV/20-kV, three phase Y-Y transformer has an equivalent series impedance of ZTL = 0.012 + 20.0162 per phase referred to the low-voltage side (secondary side). The transformer is supplying a three-phase load of 300-MVA, 0.8 power factor lagging at terminal voltage of 20 kV (line-to-line) on its low-voltage side (secondary side) as shown in Fig. 22. The primary is supplied from a transmission line with an impedance of ZL = 0.5 + j1.0 per phase. The line-to-neutral load...
Problem 3 A balanced, three-phase circuit is characterized as follows: Y-A connected; Source voltage in the...
Problem 3 A balanced, three-phase circuit is characterized as follows: Y-A connected; Source voltage in the b-phase is 2002135 V; Source phase sequence is acb; . Line impedance is 2 j32/p; . Load impedance is 126 + J 165 /d.
QUESTION 1 In the circuit shown below a three-phase, three-wire, Y-connected power system is driving a...
QUESTION 1 In the circuit shown below a three-phase, three-wire, Y-connected power system is driving a A-connected load. The generator line-to-line voltages are 150 V. The impedance of each phase of the load consists of a 6- resistance and a 8-inductive reactance. Determine the magnitude of the line current IA (in A). (Enter your answer as a decimal number without the units.) 3a, 3 wire Y-winacted generator Pane e ABC B! 150 V20
connected 3-phase load consisting of three identical impedances Z= 48ے36.870 W. 3-Phase System Using MATLAB/Simulink Analysis of Y-Y connected balanced 3-phase circuit using Matlab A 2400-V...
connected 3-phase load consisting of three identical impedances Z=
48ے36.870 W.
3-Phase System Using MATLAB/Simulink Analysis of Y-Y connected balanced 3-phase circuit using Matlab A 2400-V rms balanced 3-phase 60-Hz supply is applied to a balanced Y-connected 3-phase load consisting of three identical impedances Z- 4836.870 W. The circuit diagram is shown in Fig. 3. Taking the phase to neutral voltage Van as reference. Calculate 1) The phase &line voltage Van, Vab 2) The phase current for any phase- line...
AC Circuit Analysis 3. Three balanced three-phase loads are connected in parallel. Load 1 is Y-...
AC Circuit Analysis
3. Three balanced three-phase loads are connected in parallel. Load 1 is Y- connected with an impedance of 400 + j300N/0 load 2 is A-connected with an impedance of 2400 – 18001/¢, and load 3 is 270 +39000kVA. The loads are fed from a distribution line with an impedance of 1 + j4N/0. The magnitude of the line-to-neutral voltage at the load end of the line is 1673 kv. a) Calculate the total complex power at the...
Q1) Two ideal voltage sources designated as machines 1 and 2 are connected as shown in Figure 1. If E! = 100.200 V, E-100し300 V and Z = 0 +JS a) Determine whether each machine is generating or consuming real power and the amount b) Determine whether each machine is receiving or supplying reactive power and the amount c) Determine the P and Q absorbed by the impedance 2 #2 Figure 1: Ideal voltage sources connected through impedance Z Q2)...
Fig Qshows the one-line diagram of a three-phase power system.
As shown in Fig. Q3. the two zones are connected by a 400 MVA,
240-kV/24-kV, Ý-A three phase transformer. The Y-A three phase
transfonmer has an equivalent series impedance of ZTH - 1.2 + j1.6n
per phase referred to the high voltage side (primary side). The
three-phase power system can be studied with per unit quantities
using base values of S-500 MVA and 240 kV in zone 1.
By using...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23, the two zones are connected by a 400 MVA, 240-kV/24-kV, Y-A three phase transformer. The Y-three phase transformer has an equivalent series impedance of 2T - 1.2 + |1.6 per phase referred to the high-voltage side (primary side). The three-phase power system can be studied with per unit quantities using base values of So=500 MVA and 240 kV in zone 1. 2 -1.61253.15" Line...
Problem 1 A balanced three-phase source supplies two loads, as shown in Fig. 1. The voltage rating of the 3-phase source is 6600230° V. Load 1 impedance is 2 =45.9+j572 per phase, Load 2 impedance is Zz=12+j252 per phase. The loads are connected to the source by a 3-phase line with the impedance of ZLine=2.7+j52 per phase. Zine Load 1 a Load 2 a la Z Z Z2 VL Zino Z2 b с 22 с Zine b Fig. 1 Balanced...
Learning Goal: To find voltages and power in a balanced three-phase circuit. Three identical AC voltage sources, each with amplitude 170 V, are connected in a Y configuration to three identical resistances, each 50 , also in a Y configuration. There is also a fourth, neutral line in the circuit (see diagram). The voltage sources are each 120° out of phase from the other two sources R RE R - Part A - Load current What is the RMS current...
A 400-MVA, 200-kV/20-kV, three phase Y-Y transformer has an equivalent series impedance of ZTL = 0.012 + 20.0162 per phase referred to the low-voltage side (secondary side). The transformer is supplying a three-phase load of 300-MVA, 0.8 power factor lagging at terminal voltage of 20 kV (line-to-line) on its low-voltage side (secondary side) as shown in Fig. 22. The primary is supplied from a transmission line with an impedance of ZL = 0.5 + j1.0 per phase. The line-to-neutral load...
Problem 3 A balanced, three-phase circuit is characterized as follows: Y-A connected; Source voltage in the b-phase is 2002135 V; Source phase sequence is acb; . Line impedance is 2 j32/p; . Load impedance is 126 + J 165 /d.
QUESTION 1 In the circuit shown below a three-phase, three-wire, Y-connected power system is driving a A-connected load. The generator line-to-line voltages are 150 V. The impedance of each phase of the load consists of a 6- resistance and a 8-inductive reactance. Determine the magnitude of the line current IA (in A). (Enter your answer as a decimal number without the units.) 3a, 3 wire Y-winacted generator Pane e ABC B! 150 V20
connected 3-phase load consisting of three identical impedances Z=
48ے36.870 W.
3-Phase System Using MATLAB/Simulink Analysis of Y-Y connected balanced 3-phase circuit using Matlab A 2400-V rms balanced 3-phase 60-Hz supply is applied to a balanced Y-connected 3-phase load consisting of three identical impedances Z- 4836.870 W. The circuit diagram is shown in Fig. 3. Taking the phase to neutral voltage Van as reference. Calculate 1) The phase &line voltage Van, Vab 2) The phase current for any phase- line...
AC Circuit Analysis
3. Three balanced three-phase loads are connected in parallel. Load 1 is Y- connected with an impedance of 400 + j300N/0 load 2 is A-connected with an impedance of 2400 – 18001/¢, and load 3 is 270 +39000kVA. The loads are fed from a distribution line with an impedance of 1 + j4N/0. The magnitude of the line-to-neutral voltage at the load end of the line is 1673 kv. a) Calculate the total complex power at the...
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